Can you release the alpha of the current on the c&c3; first? Then we can play with this in the meantime. This version was very far in development. Finish this first please? Instead of starting all over again and not finishing the second time

if you can make it in the menu of the engineer, (as it is present)
but then if you click it a place marker will come and you can place it on the battlefield. the engineers will walk up there and build it as you planned(direction etc)